code: def get_aggregations(self):
      return [DataFrameAggregator(("subject_id",), self.aggregate)]
  
file_path: NiftyNet/niftynet/evaluation/classification_evaluations.py
imports: from __future__ import absolute_import, division, print_function
  import numpy
  import pandas
  from niftynet.evaluation.base_evaluations import BaseEvaluation
  from niftynet.evaluation.base_evaluator import ScalarAggregator, DataFrameAggregator
label_desc: Use image node_id 3 for calling the accuracy obj's underlying member method code with example usage: obj.get_aggregations() and returns: list